Invert display colorsGreat, it even works with 3D games and video :) However it doesn't handle multiple monitors too well. It works when I launch it from my primary screen (1680x1050 laptop screen), but when I launch it from my secondary screen (1080p), whole screen will be just blank white. I hope this isn't too hard to fix (I didn't look at the sources). I have Win 7 x64 HP, GeForce 9650M GT. Thanks for great app :)